Does anyone make a heavy duty rear coil spring for 94 4Runner?

[hacksaw]

I have a 94 Runner.  I have installed a huge subwoofer box in the rear of the vehicle.  Now my truck has a squat!  These trucks always have a slight squat to them in the rear anyway.  Is there anything I can do about this on a reasonable budget???  Leveling springs, air shocks, load springs, ect........  Keep in mind, I have all the wrenches and screwdrivers in the world but do not have a welder, so bolt in applications are prefered!  Thanks

[Prismo]

Downey offers taller coils. Best bang for the buck is air bags that fit in the coils. I think mine were Airlift.
Coils are here: http://www.downeyoff-road.com/SuspensionComponents/index.htm
An example of the air bags: http://www.samsoffroad.com/samsoffroadsto/AirLift/AirLiftOutbackSpecial.htm

[scyota]

All-Pro makes 1.5" lift coils for the 90-95 4Runners that are suppose to eliminate sag due to extra weight in the rear. $119 powder coated gloss black.

[79coyotefrg]

hey hacksaw you might look into some aerostar front coils